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MKP - Monopotassium phosphate

Chemical Formula: KH2PO4

CAS#.: 7778-77-0 

Molecular Weight: 136.09



Characteristic

Unit/Measure

Specifications maintained

Description

Visual

White fine powder

Identification


Complies

PH

1% w/v

4.0 – 5.0

Loss on drying

At 105 degree Celsius for 1 hr

Minimum 2.0%

Assay

%

Minimum 98

Phosphorus Pentoxide P 2 O 5

%

Minimum 50.0

Solubility


Soluble in water

Clarity of Solution

5% w/v

Clear Solutions

Sulfate as SO4

ppm

Under 500

Iron as Fe

ppm

Under 30

Chloride as Cl

ppm

Under 500

Arsenic as As

ppm

Under 2

Fluoride as F

ppm

Under 2

Heavy Metals

ppm

Under 10



Applications:

  • Mono potassium phosphate is widely used as a buffering agent for the determination of PH value

  • Mono potassium phosphate is also used as a food additive and as a fungicide

  • Mono ammonium phosphate when used with urea and ammonium phosphates, helps to capture ammonia gas in soil, by keeping PH level low

  • MKP is a rich source of phosphorous and potassium


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